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From: Anders Rundgren <anders.rundgren.net@gmail.com>
To: Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>, teep <teep@ietf.org>
References: <ietf-teep/OTrP/issues/14@github.com> <CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com> <e361de94-f219-cee7-0aa4-45c3d14e2732@gmail.com> <f6a98861-d517-d388-939d-b835612a0a35@gmail.com>
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Date: Wed, 3 Apr 2019 08:35:34 +0200
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Subject: Re: [Teep] [ietf-teep/OTrP] HTTP Bindings (#14)
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Maybe there are actually multiple and quite different cloud use cases?

1. The one I mentioned is when the cloud account admin (user side) in some way have obtained a TA which they want to host at the cloud SP (push/upload).
2. If the cloud SP rather is a one-stop shop there is probably no need for a protocol.  The cloud SP would at the customer's request install a designated TA using a method specified by the cloud OS.
3. If the cloud SP relies on external TA vendors, they could use the client (pull/download) protocol variant alternatively simply fetching an image.

Does this sound reasonable?

https://tools.ietf.org/html/draft-thaler-teep-otrp-over-http-01

   "To be secure against malware, an OTrP implementation (referred to as
    an OTrP "Agent" on the client side, and a "Trusted Application
    Manager (TAM)" on the server side) must themselves run inside a TEE"

With respect to the client side, I don't believe this an absolute truth, it is rather a consequence of the TEEP architecture:
https://github.com/ietf-teep/architecture/issues/52
Well, of course some parts MUST run inside the TEE, but they can be considerably reduced in size and complexity as well a becoming more powerful.

Anders

On 2019-03-30 07:10, Anders Rundgren wrote:
> A shorter way of expressing the differences is that a mobile phone scenario is a TA pull/download scheme while a cloud scenario seems more like a TA push/upload thing.
>
> Anders
>
> On 2019-03-29 10:37, Anders Rundgren wrote:
>> On 2019-03-29 08:45, Dave Thaler wrote:
>>>
>>> I would suggest we should keep issue discussion on the list, and just use the github comments to summarize.
>>>
>>
>> Fine with me.
>>
>>> Comments below as an individual participant:
>>>
>>> *From:*Anders Rundgren <notifications@github.com>
>>> *Sent:* Friday, March 29, 2019 8:12 AM
>>> *To:* ietf-teep/OTrP <OTrP@noreply.github.com>
>>> *Cc:* Subscribed <subscribed@noreply.github.com>
>>> *Subject:* [ietf-teep/OTrP] HTTP Bindings (#14)
>>>
>>> It seems that cloud based TEEs and client based TEEs would work differently (protocol wise) during provisioning, at least when HTTP is used as transport.
>>>
>>> *Client based TEE*:
>>> Request is coming from the client side (outbound) which means that the TAM request data must be delivered in a HTTP /response body/ while the TEE response is delivered in a subsequent HTTP POST request.
>>>
>>> Correct.
>>>
>>> *Cloud based TEE*:
>>> Request is coming from an outside service in the from of an HTTP POST request while the TEE response is returned in the associated HTTP response body.
>>>
>>> That’s not how it’s defined right now, it’s defined to work the same as the client based TEE summary above.
>>>
>>
>> I'm aware of that which was the reason for filing this issue.
>>
>>> This means that the TAM only needs to support one transport protocol mechanism, not two.
>>> It also allows the timing to be TEE-driven, i.e., when the TEE actually needs to do attestation or remediation, etc.
>>>
>>> Do you have any reason it **needs** to be different? I’m not currently aware of one, so prefer simplicity of one mechanism instead of two.
>>>
>>
>> Well, the traditional way of implementing cloud services over HTTP is client-service-to-cloud-service.  I haven't looked into this https://docs.microsoft.com/en-us/azure/key-vault/ <https://docs.microsoft.com/en-us/azure/key-vault/quick-create-cli> but I would be surprised if it doesn't work approximately as I described.  If the communication also needs to be asynchronous (highly unlikely), more substantial changes would be needed.
>>
>> The TEE provisioning API would (hopefully...) not change by offering two variants of HTTP bindings.
>>
>>> Another difference is that in a cloud based scenario, the requester (TAM) must also be authenticated as a legitimate cloud service account user. This is a part of an HTTP binding scheme as well.
>>>
>>> In both cases the TEE needs to authenticate the TAM, so I don’t think this is a difference either.
>>>
>>
>> I thought the TEE rather attested its identity etc. to the TAM. In a client scenario (like provisioning mobile phone TAs) the user authenticates to an "App Store" which in turn presumably provides whatever is needed for TAM access.
>>
>> In a cloud scenario like for a hosted Certificate Authority it is not obvious that there actually is a regular TAM.  Where is it and what would it do?
>>
>> Cheers,
>> Anders
>>
>>> Dave
>>>
>>>
>>> _______________________________________________
>>> TEEP mailing list
>>> TEEP@ietf.org
>>> https://www.ietf.org/mailman/listinfo/teep
>>
>


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    <div class="moz-cite-prefix">Maybe there are actually multiple and
      quite different cloud use cases?<br>
      <br>
      1. The one I mentioned is when the cloud account admin (user side)
      in some way have obtained a TA which they want to host at the
      cloud SP (push/upload).<br>
      2. If the cloud SP rather is a one-stop shop there is probably no
      need for a protocol.  The cloud SP would at the customer's request
      install a designated TA using a method specified by the cloud OS.<br>
      3. If the cloud SP relies on external TA vendors, they could use
      the client (pull/download) protocol variant alternatively simply
      fetching an image.<br>
      <br>
      Does this sound reasonable?<br>
      <br>
      <a class="moz-txt-link-freetext" href="https://tools.ietf.org/html/draft-thaler-teep-otrp-over-http-01">https://tools.ietf.org/html/draft-thaler-teep-otrp-over-http-01</a><br>
      <br>
        "To be secure against malware, an OTrP implementation (referred
      to as<br>
         an OTrP "Agent" on the client side, and a "Trusted Application<br>
         Manager (TAM)" on the server side) must themselves run inside a
      TEE"<br>
      <br>
      With respect to the client side, I don't believe this an absolute
      truth, it is rather a consequence of the TEEP architecture:<br>
      <a class="moz-txt-link-freetext" href="https://github.com/ietf-teep/architecture/issues/52">https://github.com/ietf-teep/architecture/issues/52</a><br>
      Well, of course some parts MUST run inside the TEE, but they can
      be considerably reduced in size and complexity as well a becoming
      more powerful.<br>
      <br>
      Anders <br>
      <br>
      On 2019-03-30 07:10, Anders Rundgren wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:f6a98861-d517-d388-939d-b835612a0a35@gmail.com">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <div class="moz-cite-prefix">A shorter way of expressing the
        differences is that a mobile phone scenario is a TA
        pull/download scheme while a cloud scenario seems more like a TA
        push/upload thing.<br>
        <br>
        Anders<br>
        <br>
        On 2019-03-29 10:37, Anders Rundgren wrote:<br>
      </div>
      <blockquote type="cite"
        cite="mid:e361de94-f219-cee7-0aa4-45c3d14e2732@gmail.com">
        <meta http-equiv="Content-Type" content="text/html;
          charset=UTF-8">
        <div class="moz-cite-prefix">On 2019-03-29 08:45, Dave Thaler
          wrote:<br>
        </div>
        <blockquote type="cite"
cite="mid:CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com">
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          <div class="WordSection1">
            <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">I
                would suggest we should keep issue discussion on the
                list, and just use the github comments to summarize.</span></p>
          </div>
        </blockquote>
        <br>
        Fine with me.<br>
        <br>
        <blockquote type="cite"
cite="mid:CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com">
          <div class="WordSection1">
            <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p> </o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Comments
                below as an individual participant:<o:p></o:p></span></p>
            <p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p> </o:p></span></p>
            <p class="MsoNormal" style="margin-left:.5in"><b><span
                  style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">
                Anders Rundgren <a class="moz-txt-link-rfc2396E"
                  href="mailto:notifications@github.com"
                  moz-do-not-send="true">&lt;notifications@github.com&gt;</a>
                <br>
                <b>Sent:</b> Friday, March 29, 2019 8:12 AM<br>
                <b>To:</b> ietf-teep/OTrP <a
                  class="moz-txt-link-rfc2396E"
                  href="mailto:OTrP@noreply.github.com"
                  moz-do-not-send="true">&lt;OTrP@noreply.github.com&gt;</a><br>
                <b>Cc:</b> Subscribed <a class="moz-txt-link-rfc2396E"
                  href="mailto:subscribed@noreply.github.com"
                  moz-do-not-send="true">&lt;subscribed@noreply.github.com&gt;</a><br>
                <b>Subject:</b> [ietf-teep/OTrP] HTTP Bindings (#14)<o:p></o:p></span></p>
            <p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
            <p style="margin-left:.5in">It seems that cloud based TEEs
              and client based TEEs would work differently (protocol
              wise) during provisioning, at least when HTTP is used as
              transport.<o:p></o:p></p>
            <p style="margin-left:.5in"><strong>Client based TEE</strong>:<br>
              Request is coming from the client side (outbound) which
              means that the TAM request data must be delivered in a
              HTTP <em>response body</em> while the TEE response is
              delivered in a subsequent HTTP POST request.<o:p></o:p></p>
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Correct.<o:p></o:p></span></p>
            <p style="margin-left:.5in"><strong>Cloud based TEE</strong>:<br>
              Request is coming from an outside service in the from of
              an HTTP POST request while the TEE response is returned in
              the associated HTTP response body.<o:p></o:p></p>
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">That’s
                not how it’s defined right now, it’s defined to work the
                same as the client based TEE summary above.<br>
              </span></p>
          </div>
        </blockquote>
        <br>
        I'm aware of that which was the reason for filing this issue.<br>
        <br>
        <blockquote type="cite"
cite="mid:CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com">
          <div class="WordSection1">
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">This
                means that the TAM only needs to support one transport
                protocol mechanism, not two.<br>
                It also allows the timing to be TEE-driven, i.e., when
                the TEE actually needs to do attestation or remediation,
                etc.<o:p></o:p></span></p>
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Do
                you have any reason it *<b>needs</b>* to be different? 
                I’m not currently aware of one, so prefer simplicity of
                one mechanism instead of two.</span></p>
          </div>
        </blockquote>
        <br>
        Well, the traditional way of implementing cloud services over
        HTTP is client-service-to-cloud-service.  I haven't looked into
        this <a
          href="https://docs.microsoft.com/en-us/azure/key-vault/quick-create-cli"
          moz-do-not-send="true">https://docs.microsoft.com/en-us/azure/key-vault/</a>
        but I would be surprised if it doesn't work approximately as I
        described.  If the communication also needs to be asynchronous
        (highly unlikely), more substantial changes would be needed.<br>
        <br>
        The TEE provisioning API would (hopefully...) not change by
        offering two variants of HTTP bindings.<br>
        <br>
        <blockquote type="cite"
cite="mid:CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com">
          <div class="WordSection1">
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p></o:p></span></p>
            <p style="margin-left:.5in">Another difference is that in a
              cloud based scenario, the requester (TAM) must also be
              authenticated as a legitimate cloud service account user.
              This is a part of an HTTP binding scheme as well.<o:p></o:p></p>
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">In
                both cases the TEE needs to authenticate the TAM, so I
                don’t think this is a difference either.</span></p>
          </div>
        </blockquote>
        <br>
        I thought the TEE rather attested its identity etc. to the TAM. 
        In a client scenario (like provisioning mobile phone TAs) the
        user authenticates to an "App Store" which in turn presumably
        provides whatever is needed for TAM access.<br>
        <br>
        In a cloud scenario like for a hosted Certificate Authority it
        is not obvious that there actually is a regular TAM.  Where is
        it and what would it do?<br>
        <br>
        Cheers,<br>
        Anders<br>
        <br>
        <blockquote type="cite"
cite="mid:CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com">
          <div class="WordSection1">
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p></o:p></span></p>
            <p><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Dave</span><span
                style="color:#666666"><o:p></o:p></span></p>
          </div>
          <br>
          <fieldset class="mimeAttachmentHeader"></fieldset>
          <pre class="moz-quote-pre" wrap="">_______________________________________________
TEEP mailing list
<a class="moz-txt-link-abbreviated" href="mailto:TEEP@ietf.org" moz-do-not-send="true">TEEP@ietf.org</a>
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</pre>
        </blockquote>
        <br>
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From: Anders Rundgren <anders.rundgren.net@gmail.com>
To: teep <teep@ietf.org>
References: <ietf-teep/OTrP/issues/14@github.com> <CY4PR21MB0168D9DB7A27245D2B5A354FA35A0@CY4PR21MB0168.namprd21.prod.outlook.com> <e361de94-f219-cee7-0aa4-45c3d14e2732@gmail.com> <f6a98861-d517-d388-939d-b835612a0a35@gmail.com> <7d9cd927-9184-e85b-a2c4-cce166a664cc@gmail.com>
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Subject: [Teep] Cloud based HSM using TEE/TA/OTrP
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Would it be possible getting a short description how you envision this use case?

In particular:
- how would keys be provisioned and managed in the HSM?
- how would the HSM attest its keys?

Cheers,
Anders


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From: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
To: "faibish, sorin" <Faibish.Sorin@dell.com>, Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>
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Thread-Topic: [Teep] Virtual interim?
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Archived-At: <https://mailarchive.ietf.org/arch/msg/teep/bAW941PHPK9eZuNQDa3d488vSZk>
Subject: Re: [Teep] Virtual interim?
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I like the idea of a virtual interim meeting.

From: TEEP <teep-bounces@ietf.org> On Behalf Of faibish, sorin
Sent: Donnerstag, 28. M=E4rz 2019 15:27
To: Dave Thaler <dthaler=3D40microsoft.com@dmarc.ietf.org>
Cc: teep <teep@ietf.org>
Subject: Re: [Teep] Virtual interim?

I had some points I wanted to discuss but no time. I am in favor of interim=
 meeting call.

./Sorin
Sent from my iPhone

On Mar 28, 2019, at 8:57 AM, Dave Thaler <dthaler=3D40microsoft.com@dmarc.i=
etf.org<mailto:dthaler=3D40microsoft.com@dmarc.ietf.org>> wrote:

[EXTERNAL EMAIL]
We had a suggestion from someone after the meeting to schedule a virtual in=
terim meeting.
This week we were a bit pressed for time, and probably could have used 2.5 =
hours if there were any 2.5 hour slots available.
And there was a suggestion to have Brendan give a manifest format presentat=
ion to the WG.

Do folks think it be productive to have a webex meeting in, say, mid-May?
Do authors of the specs think there would be doc updates before then if we =
did schedule one?

Dave
_______________________________________________
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<p class=3D"MsoNormal">I like the idea of a virtual interim meeting.<o:p></=
o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> TEEP &lt;teep-bounces@ietf.org&gt;
<b>On Behalf Of </b>faibish, sorin<br>
<b>Sent:</b> Donnerstag, 28. M=E4rz 2019 15:27<br>
<b>To:</b> Dave Thaler &lt;dthaler=3D40microsoft.com@dmarc.ietf.org&gt;<br>
<b>Cc:</b> teep &lt;teep@ietf.org&gt;<br>
<b>Subject:</b> Re: [Teep] Virtual interim?<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I had some points I wanted to discuss but no time. I=
 am in favor of interim meeting call.
<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">./Sorin<o:p></o:p></p=
>
<div id=3D"AppleMailSignature">
<p class=3D"MsoNormal">Sent from my iPhone<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><br>
On Mar 28, 2019, at 8:57 AM, Dave Thaler &lt;<a href=3D"mailto:dthaler=3D40=
microsoft.com@dmarc.ietf.org">dthaler=3D40microsoft.com@dmarc.ietf.org</a>&=
gt; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p><span style=3D"color:#CE1126">[EXTERNAL EMAIL] </span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal">We had a suggestion from someone after the meeting t=
o schedule a virtual interim meeting.<o:p></o:p></p>
<p class=3D"MsoNormal">This week we were a bit pressed for time, and probab=
ly could have used 2.5 hours if there were any 2.5 hour slots available.<o:=
p></o:p></p>
<p class=3D"MsoNormal">And there was a suggestion to have Brendan give a ma=
nifest format presentation to the WG.<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Do folks think it be productive to have a webex meet=
ing in, say, mid-May?<o:p></o:p></p>
<p class=3D"MsoNormal">Do authors of the specs think there would be doc upd=
ates before then if we did schedule one?<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Dave<o:p></o:p></p>
</div>
</blockquote>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class=3D"MsoNormal">_______________________________________________<br>
TEEP mailing list<br>
<a href=3D"mailto:TEEP@ietf.org">TEEP@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/teep">https://www.ietf.org=
/mailman/listinfo/teep</a><o:p></o:p></p>
</div>
</blockquote>
</div>
</div>
IMPORTANT NOTICE: The contents of this email and any attachments are confid=
ential and may also be privileged. If you are not the intended recipient, p=
lease notify the sender immediately and do not disclose the contents to any=
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From: "faibish, sorin" <Faibish.Sorin@dell.com>
To: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
CC: Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>, teep <teep@ietf.org>
Thread-Topic: [Teep] Virtual interim?
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Date: Fri, 26 Apr 2019 03:21:38 +0000
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Subject: Re: [Teep] Virtual interim?
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--_000_FC34F76C882A43668D6033892FEEF827emccom_
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I am also very much in favor for a virtual interim call. Cheers

./Sorin

Sent from my iPad

On Apr 24, 2019, at 3:56 PM, Hannes Tschofenig <Hannes.Tschofenig@arm.com<m=
ailto:Hannes.Tschofenig@arm.com>> wrote:


[EXTERNAL EMAIL]
I like the idea of a virtual interim meeting.

From: TEEP <teep-bounces@ietf.org<mailto:teep-bounces@ietf.org>> On Behalf =
Of faibish, sorin
Sent: Donnerstag, 28. M=E4rz 2019 15:27
To: Dave Thaler <dthaler=3D40microsoft.com@dmarc.ietf.org<mailto:dthaler=3D=
40microsoft.com@dmarc.ietf.org>>
Cc: teep <teep@ietf.org<mailto:teep@ietf.org>>
Subject: Re: [Teep] Virtual interim?

I had some points I wanted to discuss but no time. I am in favor of interim=
 meeting call.

./Sorin
Sent from my iPhone

On Mar 28, 2019, at 8:57 AM, Dave Thaler <dthaler=3D40microsoft.com@dmarc.i=
etf.org<mailto:dthaler=3D40microsoft.com@dmarc.ietf.org>> wrote:

[EXTERNAL EMAIL]
We had a suggestion from someone after the meeting to schedule a virtual in=
terim meeting.
This week we were a bit pressed for time, and probably could have used 2.5 =
hours if there were any 2.5 hour slots available.
And there was a suggestion to have Brendan give a manifest format presentat=
ion to the WG.

Do folks think it be productive to have a webex meeting in, say, mid-May?
Do authors of the specs think there would be doc updates before then if we =
did schedule one?

Dave
_______________________________________________
TEEP mailing list
TEEP@ietf.org<mailto:TEEP@ietf.org>
https://www.ietf.org/mailman/listinfo/teep
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--_000_FC34F76C882A43668D6033892FEEF827emccom_
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I am also very much in favor for a virtual interim call. Cheers
<div><br>
</div>
<div>./Sorin&nbsp;<br>
<br>
<div id=3D"AppleMailSignature" dir=3D"ltr">Sent from my iPad</div>
<div dir=3D"ltr"><br>
On Apr 24, 2019, at 3:56 PM, Hannes Tschofenig &lt;<a href=3D"mailto:Hannes=
.Tschofenig@arm.com">Hannes.Tschofenig@arm.com</a>&gt; wrote:<br>
<br>
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<div>
<p><font color=3D"#CE1126">[EXTERNAL EMAIL] <br>
</font></p>
</div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal">I like the idea of a virtual interim meeting.<o:p></=
o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> TEEP &lt;<a href=3D"mailto:teep-bounces@ietf.org">teep-bounces@=
ietf.org</a>&gt;
<b>On Behalf Of </b>faibish, sorin<br>
<b>Sent:</b> Donnerstag, 28. M=E4rz 2019 15:27<br>
<b>To:</b> Dave Thaler &lt;<a href=3D"mailto:dthaler=3D40microsoft.com@dmar=
c.ietf.org">dthaler=3D40microsoft.com@dmarc.ietf.org</a>&gt;<br>
<b>Cc:</b> teep &lt;<a href=3D"mailto:teep@ietf.org">teep@ietf.org</a>&gt;<=
br>
<b>Subject:</b> Re: [Teep] Virtual interim?<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I had some points I wanted to discuss but no time. I=
 am in favor of interim meeting call.
<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">./Sorin<o:p></o:p></p=
>
<div id=3D"AppleMailSignature">
<p class=3D"MsoNormal">Sent from my iPhone<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><br>
On Mar 28, 2019, at 8:57 AM, Dave Thaler &lt;<a href=3D"mailto:dthaler=3D40=
microsoft.com@dmarc.ietf.org">dthaler=3D40microsoft.com@dmarc.ietf.org</a>&=
gt; wrote:<o:p></o:p></p>
</div>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p><span style=3D"color:#CE1126">[EXTERNAL EMAIL] </span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal">We had a suggestion from someone after the meeting t=
o schedule a virtual interim meeting.<o:p></o:p></p>
<p class=3D"MsoNormal">This week we were a bit pressed for time, and probab=
ly could have used 2.5 hours if there were any 2.5 hour slots available.<o:=
p></o:p></p>
<p class=3D"MsoNormal">And there was a suggestion to have Brendan give a ma=
nifest format presentation to the WG.<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Do folks think it be productive to have a webex meet=
ing in, say, mid-May?<o:p></o:p></p>
<p class=3D"MsoNormal">Do authors of the specs think there would be doc upd=
ates before then if we did schedule one?<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Dave<o:p></o:p></p>
</div>
</blockquote>
<blockquote style=3D"margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class=3D"MsoNormal">_______________________________________________<br>
TEEP mailing list<br>
<a href=3D"mailto:TEEP@ietf.org">TEEP@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/teep">https://www.ietf.org=
/mailman/listinfo/teep</a><o:p></o:p></p>
</div>
</blockquote>
</div>
</div>
IMPORTANT NOTICE: The contents of this email and any attachments are confid=
ential and may also be privileged. If you are not the intended recipient, p=
lease notify the sender immediately and do not disclose the contents to any=
 other person, use it for any purpose,
 or store or copy the information in any medium. Thank you. </div>
</blockquote>
</div>
</body>
</html>

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From: Mingliang Pei <Mingliang_Pei@symantec.com>
To: Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "faibish, sorin" <Faibish.Sorin@dell.com>, Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>
CC: teep <teep@ietf.org>
Thread-Topic: [Teep] Virtual interim?
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